以武汉绕城公路北湖农场段软土地基长期沉降监测数据为样本，统计分析高速公路路堤施工期、路面施工期以及运行期不同阶段的沉降比例。总结超载预压、路堤高度、路堤填筑时间等因素对 3 阶段沉降比例的影响。研究结果表明：公路通车运行期的沉降占总沉降的比例相对均衡，有无施加超载、路堤高度的大小以及路堤填筑时间的长短等因素对公路运行期的沉降比例影响很小，这对于预测类似工程通车运行阶段的沉降以及公路的运行维护有一定指导意义。

 By using the long-term monitoring data of Beihu Farm section of Wuhan Ring Road as samples, the settlement proportion among three stages, namely, embankment construction period, pavement construction period and operation period, is analysed. The influence of some factors such as surcharge preloading, embankment height and embankment construction time on settlement proportion of the three stages is also summarized. The findings indicate that the factors mentioned above have little influence on the settlement proportion of operation stage, and the settlement proportion of that stage is relatively stabilized. These findings can help to predict the settlement of operation stage and to guide the operation and maintenance of highway.